- 1、本文档共33页,可阅读全部内容。
- 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
[历史学]材料科学导论
材料科學導論
材料科學導論
Introduction of Materials Science
Introduction of Materials Science
許正興
國立聯合大學電機工程學系
聯大電機系 電子材料與元件應用實驗室
1. Introduction
2. Introduction of Materials Science and Engineering
3. Atomic Structure and Bonding
4. Crystal Structures and Crystal Geometry
5. Solidification, Crystalline Imperfections and Diffusion in Solids
6. Phase Diagrams
聯大電機系 電子材料與元件應用實驗室
Crystal Structures and Crystal Geometry
Solid may be categorized broadly into crystalline and amorphous solids.
Crystalline solids, due to orderly structure of their atoms, molecules, or ions
possess well-defined shapes. = Metals are crystalline and are composed of well-
defined crystals or grains. the grains are small and not clearly observable due to
the opaque nature of metals.
The Space Lattice and Unit Cells
If the atoms or ions form a solid are arrange in a pattern that repeats itself in
three dimensions, they form a solid that has long-range order (LRO) and is
referred to as a crystalline solid or crystalline material. = metals, alloys, and
some ceramic materials.
Some materials whose atoms and ions are not arranged in a long-range,
periodic, and repeatable manner and possess only short-range order (SRO)
= this means that order exists only in the immediate neighborhood of an
atom or a molecule. ; such as liquid water = amorphous or noncrystalline
聯大電機系 電子材料與元件應用實驗室
Atomic arrangements in crystalline solids can be described by referring the atoms to the
points of intersection of a network of lines in three dimensions. Such a network is
called a space lattice. = described as an infinite three-dimensional array
文档评论(0)